Improvement in chucks



dntrd tatee @aan aan@ MI'LroN'LovE. or oonnrrENN-SYLVANIA.

Letters Patent No. 109,434, dated November 22, 1870.

lMPRCVEMENT IN CHUCKS.

The Schedule referred to in these Letters Patent and making part of the same.

ythe letters of reference marked thereon making a part of this specification, in which- Figure l represents a top view of the head'or chuck.

kI? ignre 2 represents a cross-section of the same.

The nature of my invention consists in the arrangement andeombination of the devices forming a chuck or clutch, made of iron or other metal, for holding bolts or other irons while being out or turned.

'lo enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation, as follows:

AA hollow wheel, marked A in the accompanying drawing, is provided with jaws b b in the center, which slide thereon.

'lhe jaws are fastened lo levers G C'by means of attachments (l d.

The levers C G .are attached to a toggle, f, on the outside end by means of attachments e e.

y The toggle f is worked bymeans of the screw g,

.which stands upon the center ofthe inside of the head, at or near the center of the same, passing through the toggle f to the outside of the wheel A, worked by mea-ns of a wrench or thumb-screw at h.

The screw, when worked forward, operates4 upon the toggle j so as to move both-levers G C and jaws hb (the levers C C working upon their fulcrums J J together).in such a manner as to bring the jaws to head,A. o

The wheel A is so constructed as to be fastened tol the purpose of being used in bolt-cutting or drilling, and to be attached to lathes or any other machines.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is 'lhe arrangement, with the hollow head A, ofthe jaws b b, levers C C, attachments e e, toggle f, and screw g, when combined and operating as herein described and yset fort-h. Y

MILTON LOVE.

Witnesses:

J. FRANKLIN REIGABT, OorAvrUs KNIGHT.

the center at the same time, making a self-centering a hollow pipe or shaft by means of the screw K, forV 

